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H(3)O(+) tetrahedron induction in large negative linear compressibility

Despite the rarity, large negative linear compressibility (NLC) was observed in metal-organic framework material Zn(HO(3)PC(4)H(8)PO(3)H)∙2H(2)O (ZAG-4) in experiment. We find a unique NLC mechanism in ZAG-4 based on first-principle calculations. The key component to realize its large NLC is the def...

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Detalles Bibliográficos
Autores principales: Wang, Hui, Feng, Min, Wang, Yu-Fang, Gu, Zhi-Yuan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4868991/
https://www.ncbi.nlm.nih.gov/pubmed/27184726
http://dx.doi.org/10.1038/srep26015
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author Wang, Hui
Feng, Min
Wang, Yu-Fang
Gu, Zhi-Yuan
author_facet Wang, Hui
Feng, Min
Wang, Yu-Fang
Gu, Zhi-Yuan
author_sort Wang, Hui
collection PubMed
description Despite the rarity, large negative linear compressibility (NLC) was observed in metal-organic framework material Zn(HO(3)PC(4)H(8)PO(3)H)∙2H(2)O (ZAG-4) in experiment. We find a unique NLC mechanism in ZAG-4 based on first-principle calculations. The key component to realize its large NLC is the deformation of H(3)O(+) tetrahedron. With pressure increase, the oxygen apex approaches and then is inserted into the tetrahedron base (hydrogen triangle). The tetrahedron base subsequently expands, which results in the b axis expansion. After that, the oxygen apex penetrates the tetrahedron base and the b axis contracts. The negative and positive linear compressibility is well reproduced by the hexagonal model and ZAG-4 is the first MOFs evolving from non re-entrant to re-entrant hexagon framework with pressure increase. This gives a new approach to explore and design NLC materials.
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spelling pubmed-48689912016-06-01 H(3)O(+) tetrahedron induction in large negative linear compressibility Wang, Hui Feng, Min Wang, Yu-Fang Gu, Zhi-Yuan Sci Rep Article Despite the rarity, large negative linear compressibility (NLC) was observed in metal-organic framework material Zn(HO(3)PC(4)H(8)PO(3)H)∙2H(2)O (ZAG-4) in experiment. We find a unique NLC mechanism in ZAG-4 based on first-principle calculations. The key component to realize its large NLC is the deformation of H(3)O(+) tetrahedron. With pressure increase, the oxygen apex approaches and then is inserted into the tetrahedron base (hydrogen triangle). The tetrahedron base subsequently expands, which results in the b axis expansion. After that, the oxygen apex penetrates the tetrahedron base and the b axis contracts. The negative and positive linear compressibility is well reproduced by the hexagonal model and ZAG-4 is the first MOFs evolving from non re-entrant to re-entrant hexagon framework with pressure increase. This gives a new approach to explore and design NLC materials. Nature Publishing Group 2016-05-17 /pmc/articles/PMC4868991/ /pubmed/27184726 http://dx.doi.org/10.1038/srep26015 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Wang, Hui
Feng, Min
Wang, Yu-Fang
Gu, Zhi-Yuan
H(3)O(+) tetrahedron induction in large negative linear compressibility
title H(3)O(+) tetrahedron induction in large negative linear compressibility
title_full H(3)O(+) tetrahedron induction in large negative linear compressibility
title_fullStr H(3)O(+) tetrahedron induction in large negative linear compressibility
title_full_unstemmed H(3)O(+) tetrahedron induction in large negative linear compressibility
title_short H(3)O(+) tetrahedron induction in large negative linear compressibility
title_sort h(3)o(+) tetrahedron induction in large negative linear compressibility
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4868991/
https://www.ncbi.nlm.nih.gov/pubmed/27184726
http://dx.doi.org/10.1038/srep26015
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